What is CVE-2024-31504?

CVE-2024-31504 is a high-severity vulnerability in Embedded-Solutions Freemodbus, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-07-08.

How severe is CVE-2024-31504?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2024-31504 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Embedded-Solutions Freemodbus

CVE-2024-31504

Buffer Overflow vulnerability in SILA Embedded Solutions GmbH freemodbus v.2018-09-12 allows a remtoe attacker to cause a denial of service via the LINUXTCP server component.

Vulnerability class: Buffer Overflow

Published 2024-07-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (44.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Embedded-Solutions Freemodbus — versions 2018-09-12

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

gist.github.com/CAPCOMIN/a0361511068dce21a557cf9fa01d0a02 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-31504?: CVE-2024-31504 is a high-severity vulnerability in Embedded-Solutions Freemodbus, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-07-08.
How severe is CVE-2024-31504?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-31504 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.